Do you work for Autometer? j/k I guess a lot of stock tach's are off but mine's correct, I checked it against another tach, and it shows the proper rpm for mph.RI lx said:The stock tach is so off in these things it's a joke. I regularly hold my car near an indicated 7000 RPMS, but I know it's only 6100.
Like everyone says these motors are tough, mine's seen a little over 6K rpm on N2O and still runs strong. That happened at about 170,000 miles too.